Is it possible that - rather than thinking in terms of 'good' and 'evil' - all of us instead lie somewhere on the empathy spectrum, and our position on that spectrum can be affected by both genes and our environments? Why do some people treat others as objects? This book examines an understanding in a study of what it means to be human.

Simon Baron-Cohen is Professor at Cambridge University in the fields of psychology and psychiatry. He is also the Director of the Autism Research Centre there. He has carried out research into social neuroscience over a 20 year career. His popular science book entitled The Essential Difference (Penguin 2003) has been translated in over a dozen languages, and has been widely reviewed.